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Finding the Fourth Proportional to 281,358, 422,037 and 84,366

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Solution

The fourth proportional to 281,358, 422,037 and 84,366 is: 126,549

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,358 : 422,037 = 84,366 : x
  2. Step 2: Convert to fraction form
    281,358/422,037 = 84,366/x
  3. Step 3: Cross multiply
    281,358x = 422,037 × 84,366
  4. Step 4: Simplify right side
    281,358x = 35,605,573,542
  5. Step 5: Solve for x
    x = 35,605,573,542/281,358
  6. Step 6: Final answer
    x = 126,549

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.